CRIRES User Manual PDF
Preview CRIRES User Manual
EUROPEAN SOUTHERN OBSERVATORY Organisation Europ´eene pour des Recherches Astronomiques dans l’H´emisph`ere Austral Europ¨aische Organisation fu¨r astronomische Forschung in der su¨dlichen Hemisph¨are ESO - European Southern Observatory Karl-Schwarzschild Str. 2, D-85748 Garching bei Mu¨nchen Very Large Telescope Paranal Science Operations CRIRES User Manual Doc. No. VLT-MAN-ESO-14500-3486 Issue 93.1, Date 27/08/2013 J.Smoker 27/08/2013 Prepared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Date Signature A. Kaufer Approved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Date Signature C. Dumas Released . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Date Signature CRIRES User Manual VLT-MAN-ESO-14500-3486 ii This page was intentionally left blank CRIRES User Manual VLT-MAN-ESO-14500-3486 iii Change Record Issue/Rev. Date Section/Parag. Reason/Initiation/Documents/Remarks affected 79.1 29/08/06 all RSI,ASM: First release, issued for P79 Phase1 79.2 08/09/06 all ASM: Sec. 11, corrected wavelength table 79.3 20/12/06 all RSI, ASM, comments DMD 79.4 21/12/06 14,15 ASM, minor editorial corrections 80.1 05/03/07 0,1 ASM, corrected layout figure and description 3 added a web-link 6 corrected detector gain added comments on a non-linearity correction method minor updates and corrected typos 5 updated limiting mag. in noAO 8 added subsection on entrance window transmission updated sensitivities 10 updated overheads 11 added 3 recommended DIT values, updated text 12 updated 80.2 12/03/07 0,8.1,10.3 corrected typos 7.2,14.2 added paragraph on gas-cell and generic offsets template 80.3 20/03/07 15 corrected J band wavelength ranges 80.4 26/03/07 15 corrected missing entries in Table 4 80.5 07/05/07 1 corrected description 21/05/07 14.2 new observation template 05/06/07 7.2 added link to N2O line list; 1st results on RV accuracy 09/06/07 0,1,7.4 corrected slit length and slit viewer f-o-v 09/06/07 14.1.1 corrected typo in RA offset 09/06/07 12 daytime wavecal only for λ < 2400 nm 19/06/07 1.4,6.4 contact information, odd-even 19/06/07 8.4 add important note on intermediate slit 20/06/07 17,18 new section 17, update §18 20/06/07 11.1,14.1 added comments on ext. objects, moving targets 20/06/07 9.3 added comments on std stars 20/06/07 14.2 added gas cell P2PP parameter description CRIRES User Manual VLT-MAN-ESO-14500-3486 iv 81.1 31/08/07 8.4 updated 31/08/07 8.2 Added Fig. 29: comparison UVES vs CRIRES 31/08/07 10.3 Table 2 (overheads) updated 31/08/07 15 Slightly changed captions 01/09/07 6.4 Added links to method and reference frames 01/09/07 9.1 Added link to ETC 01/09/07 11.2.1 Added para.: choice of a SVGS in crowded field 01/09/07 8.2 Added para. on slit loss due to diff. refraction 01/09/07 11.4 Added requirement for fc 02/09/07 5 Figures added (AO performance, resolving power) 02/09/07 11.5 Add a para. on airmass 81.2 19/11/07 11.2.4, 14.2, 14.2.5 Added SpectroAstrometry template 20/11/07 14.1.3 Change default value of SEQ.NGS.USELASTSKY to T 21/11/07 1.5 New section: NEWS 21/11/07 10.1 Added: specific comments for SM (telluric OBs) 22/11/07 14.2.4 Expanded description of generic offsets template 18/12/07 Table 1 Dark current values corrected 18/12/07 7.2 Changed comment regarding gas-cells 27/12/07 Tables 3a-4h Wavelength settings updated 27/12/07 §8.4,9.1, 9.2.1 typos corrected 27/12/07 §9.2.3, 10.2, 11.1, 11.2.1 typos corrected 27/12/07 §10.1,13.1, 14.1, 5 typos corrected 27/12/07 §11.5.3, 5.1 clarified 27/12/07 §7.3, 5.2 updated 28/12/07 §5.1.2 AO star bright mag. limit updated 82.1 20/01/08 §7.2 updated available gas-cells 20/01/08 §20 added section 03/03/08 §7.1 updated: new configuration table 03/03/08 §8.4 updated 03/03/08 §11.6 numbering changed 03/03/08 §11.5.6 new sub-section on water vapor 03/03/08 §14.1.7 updated 03/03/08 §18 updated 82.2 19/06/08 §10.2 ETC updated: precipitable water vapor 19/06/08 Table 2 incl. overhead for derotator motion in spectroastrometry 19/06/08 §9.1,Fig.33 added a fig. with water vapor only transmission 23/06/08 §7.2 ThAr fibers, CO gas-cell and visitor gas-cells 23/06/08 §14.1.2 14.3.6 Updated for the use of CO gas-cell 23/06/08 §1.5 Updated 23/06/08 §2.1, 11.2.5 Updated for ThAr fiber 25/06/08 §12 calibration plan updated 25/06/08 §14.1.7 added note regarding slit width 25/06/08 §7.1 Added note: vacuum wavelength are used 25/06/08 §11.4 Added note regarding multiple stars CRIRES User Manual VLT-MAN-ESO-14500-3486 v 83.1 29/08/08 Tab. 7a updated with CO gas-cell for order 24 29/08/08 §1.5 news updated 29/08/08 §20.1 checklist updated 29/08/08 §7.2.1 update on identification of ThAr lines 29/08/08 §7.4 added not regarding slit width 83.2 19/12/08 §7.2.2 radial-velocity measurements: added 19/12/08 – spectral resolution: updated 19/12/08 §6.5 linearity: added 19/12/08 §14.1.3 WFS last sky measurements: updated 19/12/08 §8.2 limitations due to differential refraction: removed 19/12/08 §1.3,11, 20.2 P2PP links: updated 84.1 04/03/09 §1.5 Section updated 04/03/09 §14.1 Note added 04/03/09 §7.1 Slit wider than 0.4(cid:48)(cid:48)should be avoided. 04/03/09 §7.2.2 Note added regarding radial velocity measurements 04/03/09 §11.3 New readout mode 04/03/09 Tab. 2 Overheads table updated 04/03/09 §11.1 Differential tracking 84.2 29/05/09 §1.5 Section updated 30/05/09 §5.1.3 Note added 30/05/09 §5.1 Max. distance AO star - science target corrected 30/05/09 §7.2.1 Updated with new ThAr atlas information 30/05/09 §7.4, Fig 25 F-o-v updated following the May09 intervention 15/06/09 §14 Added description of differential tracking Added description of readout modes 17/06/09 §6, 11.3 Updated to take into account the new readout mode 17/06/09 §7.1 Updated to take into account the new configuration table 17/06/09 Tab 3a -6 Updated to take into account the new configuration table 17/06/09 §19 Differential tracking section added 17/06/09 §10.4 Differential chromatic effect section added 18/06/09 Tab 2 Overheads updated 01/07/09 §11.5 Section updated 85.1 31/08/09 §11.3 and 14.1.8 DIT setting: §reworded 31/08/09 §14.2 updated 31/08/09 §19.3 note added 31/08/09 §7.2.1 gas-cell: note added 31/08/09 §1.5 updated 85.2 31/08/09 §1.5 updated 25/12/09 §6.2 comment on detector glow 25/12/09 §7.2.2 updated with new RV refs 25/12/09 §– resolving power reproducability section amended 25/12/09 §8.2 UVES/CRIRES comparison updated 25/12/09 §11.3 and 14.1.8 DIT setting:§further updated 25/12/09 §14.3.2 FF parameters; updated advice for extended targets 25/12/09 §14.3.3 updated wavelength calibration section 25/12/09 §14.3.4 updated dark parameters 25/12/09 Table 15.1 tables of reference wavelengths updated with new encoder values. 25/12/09 Figure 25 slit and science detector geometry figure changed 25/12/09 §19.3 updated differential tracking section CRIRES User Manual VLT-MAN-ESO-14500-3486 vi 86.1 26/02/10 Minor updates for P86 Phase I 26/02/10 §1.5 updated news s6/02/10 §2.1 updated optics section 26/02/10 §7.1 updated wavelength settings section 26/02/10 §8.4 updated reproducability section 26/02/10 §7.2.2 updated with new RV refs 26/02/10 – updated spectral resolving power section 26/02/10 §8.2 note added about overheads 26/02/10 §10.1 note added about OBs over 1 hour needing waiver 86.2 24/06/10 §1.3 note added about order contamination for wide slits, slit width variation and AO-related issues to be aware of 24/06/10 §1.5 news section updated to point at news webpage 24/06/10 §7.2.2 updated RV ref 24/06/10 §10.5 Notes for visiting astronomers updated 87.1 24/08/10 §1.3 Note that the entrance slit will likely be replaced in future 24/08/10 §2.2 Temperature of detectors 27 K 24/08/10 §5.1.2 Typos 24/08/10 – Emphasise that slit width of <0.2” not possible. 24/08/10 §9.4 Comment about backup targets incse of high winds added 24/08/10 §10.2 Link added for Paranal PWV measurements 24/08/10 §10.5 Figure showing order contamination added 24/08/10 §11.5.4 No AO in THK cloud for R<10.5 mag 24/08/10 §11.5.6 PWV measurement url added 24/08/10 §14.1.7 Typos 87.2 16/09/10 Fig. 25 Geometry of SV camera changed after Sept 2010 intervention 87.3 25/12/10 §1.5 News updated 25/12/10 §7.1 Metrology not yet implemented 25/12/10 §7.2.1 Typos 25/12/10 §7.2.2 Typos 25/12/10 §7.2.4 AO/NoAO is possible without gas cells in the beam 25/12/10 §7.3 Atlas of CRIRES flatfields reference 25/12/10 §10.2 ETC values given per pixel 25/12/10 §10.3 Overheads section reworded 25/12/10 §11.1 Typos 25/12/10 §11.3 Slit width can be changed independently of the DIT 25/12/10 §11.2.1 Waiver needed in SM for slit wider than 0.4 arcseconds 25/12/10 §14.1.7 Waiver needed in SM for slit wider than 0.4 arcseconds 25/12/10 §14.2.3 Only one λ setting if win=64 pixels for FowlerNsampGrstWin 25/12/10 §20.2 Phase 2 guidelines section expanded 88.1 28/02/11 §1.5 From P88 CRIRES will likely have 0.2 and 0.4 arcsec slits only. 28/02/11 §1.3 8.4 Sections updated c.f. move to two fixed slits 28/02/11 §10.5 14.1.1 14.1.7 ” 28/02/11 Figs. 25 27 ” 28/02/11 §2 Comment about slit losses 28/02/11 §7.2.2 Rewording 28/02/11 §8.2 UVES/CRIRES comparison updated 28/02/11 Fig. 29 Figure of UVES/CRIRES comparison changed 28/02/11 Table 1 Dark level for detector 1 CRIRES User Manual VLT-MAN-ESO-14500-3486 vii 88.1 28/02/11 §9.2.3 Jittering limits when using windowing. 28/02/11 §9.3 Telluric standards observed within 2h in time & 0.2 in airmass 28/02/11 §9.3 Reference added that discusses synthesising telluric spectra 28/02/11 §10.2 Emphasise ETC can be used to predict the position of tellurics 28/02/11 §10.2 PIs should flag OBs that require low PWV 28/02/11 §10.4 Typos (differential effects) 28/02/11 §10.5 Calibrations normally taken with 0.2 arcsec slit 28/02/11 §10.5 Care when using differential tracking and AO 28/02/11 §11.1 OB preparation: use ETC to check for telluric lines 88.2 11/04/11 Cover page Name of Preparer and Approver updated 88.3 30/05/11 §1 R < 10.5 mag not allowed if THK cloud and AO 30/05/11 §7.1 Typos 30/05/11 §7.3 Typos 30/05/11 §8.2 Typos 30/05/11 §8.4 Slit width change during night-time 30/05/11 §25 Figure caption changed to save space 30/05/11 §9.4 Link to ESO airmass page updated 30/05/11 §10.2 Exposure time calculator: AO for seeing of <1.4 arcseconds 30/05/11 §10.3 Generic offset overhead added 30/05/11 §10.5 Typos 30/05/11 §12 Daytime cals taken with a 0.2 arcsecond slit. Night-time with 0.4 arcseconds in VM or best effort basis in SM. 30/05/11 §14.3.3 Daytime calibrations taken with a 0.2 arcsecond slit. 88.4 26/06/11 Fig 39 Generic offset template section and figure amended 89.1 04/09/11 An update to the manual will be performed at the start 04/09/11 of Oct 2011 after the move to fixed slits 04/09/11 2011. 04/09/11 §1 Science drivers references added 04/09/11 §1.5 News updated 04/09/11 §5.1 AO loop may close on Mars or comet nuclei 04/09/11 §8.4 Note on CRIRES instrument model added 04/09/11 §8.1 Entrance window may be cleaned in Sept 2011 04/09/11 §9.1 Reminder to use ETC to check if astronomical line of interest 04/09/11 is affected by atmospheric absorption 04/09/11 §9.2.2 Set nod throw to 12 arcseconds in windowed readout mode 04/09/11 §11.1 Reminder to include PM of targets in OBs 04/09/11 §14.1.1 Typos 89.2 23/12/11 §1.3, 1.5 Two fixed slits of 0.2 and 0.4 arcseconds. 23/12/11 §1, 7.1, 7.2.2 23/12/11 §7.4, Fig. 25, Table 1 23/12/11 §Fig. 27, §8.4 23/12/11 §2.1, §10.5 23/12/11 §10.1 11 Links to P2PP updated. 23/12/11 §1.5 News updated. 23/12/11 Fig 2 Fig. added to show flatfielding reproducability improved. CRIRES User Manual VLT-MAN-ESO-14500-3486 viii 89.2 23/12/11 §8.2 Table of sensitivities removed; ETC should be used. 23/12/11 §10.4 Updated concerning closing loop on satellites of Jupiter. 23/12/11 §10.5 Figure showing contamination with 0.8 arcsec slit removed. 23/12/11 §11.1 Updated concerning closing loop on Mars, Jupiter, Uranus. 23/12/11 §12 Tests in early P88 indicated that wavelength solution with a 23/12/11 0.4” slit give a reasonable wavelength solution. Comment 23/12/11 cf calibrations taken with an integration time ≥ 2 seconds. 23/12/11 §19.1 Updated differential tracking section. 23/12/11 Fig. 31 Figure showing slit centre reproducability added. 23/12/11 Table 2 Overheads increased to take into account metrology. 23/12/11 Fig. 16 Figure showing remanence after saturation added. 23/12/11 Fig. 21 Figure showing contamination of outer detectors from other 23/12/11 orders added. 23/12/11 §20.2 SKY mode must be used if a fixed position angle is required. 90.1 26/02/12 Fig. 3 Fig. added showing pre- and post- slit intervention specphot std. 26/02/12 §1.5 No service mode PI packs. Users should use archive and CalSelector 26/02/12 to download science data and relevant calibrations. 26/02/12 §1.5 PWV as a FITS header keyword will likely be added in P90. 26/02/12 §1.5 20.1 Precipitable Water Vapour will be a constraint from P90. 26/02/12 §10.2 11.5.6 26/02/12 §9.1 ETC updated to include new values of water vapour. 26/02/12 Fig. 34 Figure added to show how PWV changes with airmass. 26/02/12 Fig. 35 Figure added to show how PWV affects observations at different λ. 26/02/12 §12 Attached calibrations possible with either 0.2 or 0.4 arcsec slit. 26/02/12 §12 Calibration frequency may be reduced from P91. 26/02/12 §20.1 Use the ETC to check if water vapour lines affect observations. 26/02/12 Fig. 43 Figure of PWV statistics for Paranal added. 90.2 15/06/12 §1.5 News updated 15/06/12 Fig. 15 SV camera zero points figure added. 15/06/12 §9.3.2 Science/telluric OBs can be linked via a concatenation. 15/06/12 §11.2.5 Affect of water vapour on flatfields. 15/06/12 Fig. 38 Figure to show how water vapour can affect flatfields 15/06/12 §11.5.7 Note on observing during astronomical twilight. 15/06/12 §12 20.2 10.1 P2PP → P2PP3 15/06/12 §12 Calibration frequency may be reduced from P90. 15/06/12 §20 For λ < 2.0 microns, low PWV values will need a waiver. 15/06/12 §20.2 OB concatenations and time-series can be requested in P2PP3 90.2 27/06/12 All P2PP, P2PP3, Phase I and Phase II capitalised. 27/06/12 §10 P2PP html link updated. 27/06/12 §1.3 Service mode guideline link updated. 27/06/12 Fig. 2 Typos. 27/06/12 §7.3 8.2 9.3.2 Typos. 27/06/12 §7.1 goal for introduction of metrology date changed to P90. 27/06/12 §8.1 Loss of sensitivity of ∼20 percent since start of operations. 27/06/12 §10.1 Paragraph added about tellurics with concatenations. 27/06/12 Table 2 Overhead in changing wavelength increased by 10 seconds. 27/06/12 §11.2.4 Note about scheduling containers added. 27/06/12 §11.2.6 Tellurics using P2PP3 and time-critical OBs. 27/06/12 §13.1 HTML link to pipeline updated. 27/06/12 §14.3.3 Night time calibrations can be taken with a 0.4” slit. CRIRES User Manual VLT-MAN-ESO-14500-3486 ix 90.2 27/06/12 §14.3.6 INS.SLIT.WIDTH range changed from 0.05..3.0 to 0.2 and 0.4”. 27/06/12 Fig. 36 Figure showing ETC output compared with observations of Eta Hy. 27/06/12 Fig. 41 Typo. 27/06/12 §20.2 Science-telluric concatenations > 1.5 hours long need a waiver. 27/06/12 Fig. 43 Typo. 91.1 28/08/12 §1.1 Science driver references updated. 28/08/12 §1.5 Note that UNe lamp may in future be used for wavelength calibration 28/08/12 §5.1 AO stars further than 20(cid:48)(cid:48) need waiver. 28/08/12 §5.1.2 Reworded. 28/08/12 §5.2 Comment on the use of slit viewer filter 28/08/12 §6 DIT of 2-s or more preferred. 28/08/12 §6.5 Test of non-linearity correction at low- and high- signal 28/08/12 §7.2.1 Lack of ThAr lines in some settings emphasised. 28/08/12 Fig. 25 Figure showing science and slit viewer geometry updated. 28/08/12 §11.5.6 Comment on ;likelihood of very low PWV. 28/08/12 Fig. 44 CRIRES PWV histogramme added. 28/08/12 §20.1 Checklist updated. 91.2 25/12/12 §1.1 Science drivers references updated. 25/12/12 §1.4 Contact information updated. 25/12/12 §1.5 News updated. 25/12/12 §6.5 Link to report about correcting for non-linearity. 26/12/12 – Link to resolving power added 25/12/12 §9.1 FITS keywords for PWV now in the CRIRES headers. 25/12/12 §9.2.3 Limits of jittering in windowed mode. 25/12/12 §9.3.2 Typos 25/12/12 §11.2.1 Setting FWHM of NGS if not a point source. 25/12/12 Fig. 22 Comment added concerning stray light features in ThAr observations. 25/12/12 §13.2 Data reduction cookbook released. 25/12/12 §14 Typos. 25/12/12 §14.2.4 MACAO CLOSE and OPEN loop for OBJECT and SKY for generic offsets. 25/12/12 §14.2.5 INS.ROT.POSSANG.LIST values are absolute. 25/12/12 §14.3.4 Typos. 25/12/12 §19.3 Typo in acquisition sequence. 25/12/12 §20.1 Observations <2 microns need waiver for PWV<10.0-mm 25/12/12 §20.1 Use report option in p2pp to determine OB lengths and overheads 25/12/12 §20.2 SKY mode for 2 objects on slit, gen. offset or spectro-astrometry. 25/12/12 §20.2 Link to CRIRES SM requirements updated. 92.1 28/02/13 §1.1 Science drivers references updated. 28/02/13 §1.5 News updated 28/02/13 §6.1 Comment added about occasional pickup noise in darks. 28/02/13 §6.5 Non-linearity section updated. 28/02/13 §9.2.4 No M2 chopping with CRIRES. 28/02/13 §10.1 Note added about waivers. 28/02/13 §10.2 Use p2pp3 for exact calculation of execution times. 28/02/13 §10.4 Typo. 28/02/13 §11.1 Reminder to use PAF file for moving targets. 28/02/13 Fig. 44 Caption updated. 28/02/13 §11.5.6 PWV subsection → sub subsection. Ditto Twilight constraint. CRIRES User Manual VLT-MAN-ESO-14500-3486 x 92.2 27/06/13 §1.1 Science drivers references updated. 27/06/13 §1.5 News updated. 27/06/13 §17 Figure added showing the readout noise against DIT for normal 27/06/13 and windowed readout modes. 27/06/13 §6 Section concerning windowed mode updated. 27/06/13 Table 7b Ask for test wavelength calibration if using gas-cells. 27/06/13 §7.2.1 Section concerning ThAr lamp updated. 93.1 27/08/13 All Spellchecker corrected many typos. 27/08/13 §1.1 Science drivers references updated. 27/08/13 §1.5 News updated. 27/08/13 Fig. §4 Caption of optical design updated. 27/08/13 Fig. §17 Figure updated showing RON vs DIT for the two readout modes. 27/08/13 §5.2 Comment about poor quality of SV focus (science focus OK). 27/08/13 §6 Windowed mode has much lower RON than normal mode for only some DITS, for others the values are similar. 27/07/13 §6.5 Report on CRIRES linearity correction available on request. 27/07/13 §7.1 Deadline for metrology pushed back. 27/07/13 §7.2.2 Typos. 27/07/13 §9.2.2 Typos. 27/07/13 §9.2.3 Typos. 27/08/13 §10.2 Next version of ETC will incorporate DIT-dependent readout noise and FowlerNSampGRStWin readout mode as well as FowlerNSamp. 27/08/13 §10.2 Typos. 27/08/13 §11.5.4 Typos. 27/07/13 §12 ESO reserves the right to reduce the calibration frequency if tests show that this has no affect on the quality of reduced data. 27/07/13 §12 Typos. First version of the manual was written by R.Siebenmorgen and A.Smette. L. Tacconi- Garman, D. Baade, M. Hilker and E. Valenti provided numerous comments on the various versions of this manual that greatly improved its accuracy and clarity. The content of §7.2.2 (RV measurements) was originally based on discussions with H.-U. Kaeufl, P. Figueroa and Andreas Seifarht. Thanks to G. Villanova, T. Stallard, E. Lellouch, F. Kerber, M. Rodrigues and M. van den Ancker for some figures that are used in this manual.
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